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Discovery of Jurassic ammonite-bearing series in Jebel Bou Hedma (South-Central Tunisian Atlas): Implications for stratigraphic correlations and paleogeographic reconstruction
Abstract Recent geological mapping undertaken in the Southern-Central Atlas of Tunisia led to the discovery of Jurassic ammonite-bearing series in the Jebel Bou Hedma E–W anticline structure. These
Effects of increasing levels of pharmaceutical penicillin G contamination on structure of free living nematode communities in experimental microcosms.
TLDR
Results showed significant differences between nematode assemblages from undisturbed controls and those from penicillin G treatments, and most univariate measures, including diversity, species richness, equitability and number of species decreased significantly with increasing level of the antibiotic contamination.
Environmental quality assessment of El Bibane lagoon (Tunisia) using taxonomic and functional diversity of meiofauna and nematodes
The lagoon of El Bibane (Tunisia) is a Mediterranean coastal area that is affected by an increasing human impact. Thus, an estimation of its biodiversity and an ecological quality assessment are very
Migratory behavior of free-living marine nematodes surrounded by sediments experimentally contaminated by mixtures of polycyclic aromatic hydrocarbons
Abstract An experiment was conducted using microcosms with connected sedimentary compartments to assess the effects of three polycyclic aromatic hydrocarbons (PAHs) on free-living marine nematodes
Trophic restructuring (Wieser 1953) of free-living nematode in marine sediment experimentally enriched to increasing doses of pharmaceutical penicillin G
TLDR
Results showed significant differences between nematode assemblages from undisturbed controls and those from penicillin G treatments, and omnivorous-carnivorous (2B) was found to be higher in all treated microcosms, with the exception of those treated with D5.
Restructuring of a meiobenthic assemblage after sediment contamination with an antibacterial compound: Case study of ciprofloxacin.
TLDR
Two dimensional (2D) non-metric multidimensional scaling (nMDS) plots and relative abundances of functional groups of nematode genus assemblages revealed that all functional trait abundances were affected, particularly with the highest dose of ciprofloxacin.
Chronic ecotoxicity of ciprofloxacin exposure on taxonomic diversity of a meiobenthic nematode community in microcosm experiments
TLDR
The non-parametric Multi-Dimensional Scaling based on species abundances (MDS) showed significant separation of the control microcosm from the antibiotic-treated populations, and the nematode species responses varied.
Laboratory bioassay exploring the effects of anti-aging skincare products on free-living marine nematodes: a case study of collagen
TLDR
The influence of collagen, the main component of commercialized skin anti-aging products, on a Mediterranean community of free-living marine nematodes from a beach in Rimel, northeast Tunisia was explored using a microcosm approach.
New protocols for the selection and rearing of Metoncholaimus pristiurus and the first evaluation of oxidative stress biomarkers in meiobenthic nematodes.
TLDR
The data provided the first results in terms of biochemical biomarkers for meiobenthic nematodes and showed that the selected taxa, M. pristiurus, could be one of the first marine taxa responding early to the tested stressors, zinc and permethrin, even at very low concentrations.
Nematodes trophic groups changing via reducing of bacterial population density after sediment enrichment to ciprofloxacin antibiotic: Case study of Marine Mediterranean community.
TLDR
It is shown that ciprofloxacin also leads to a significant decrease in bacterial density with the highest dose, which could explain the results obtained for nematode trophic groups distribution.
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